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john charlton · 05-15-2020, 03:14 PM

Before you run the engine again you MUST DROP THE PAN !!! . Pop out the dipper tray and clean everything I think you will be horrified at what you have been pumping around the engine . Clean out the valve chest make sure you do not drop any crud down the main bearing oil feed holes one each end and one in the middle . Also try to remove as much deposit on the crankcase walls . This engine has been run on straight mineral oil no detergent and after you refill the engine oil you will use an oil which will have some detergent effect this will sluice all the deposits in the engine into suspension which will circulate ,not good .Oil is cheap run the engine and have several oil changes until it shows clear on the dipstick .

John in Suffolk County England .

05-15-2020, 03:14 PM	#22
john charlton Senior Member Join Date: May 2010 Posts: 1,304	Re: 1929 Fordor Briggs Running Again Before you run the engine again you MUST DROP THE PAN !!! . Pop out the dipper tray and clean everything I think you will be horrified at what you have been pumping around the engine . Clean out the valve chest make sure you do not drop any crud down the main bearing oil feed holes one each end and one in the middle . Also try to remove as much deposit on the crankcase walls . This engine has been run on straight mineral oil no detergent and after you refill the engine oil you will use an oil which will have some detergent effect this will sluice all the deposits in the engine into suspension which will circulate ,not good .Oil is cheap run the engine and have several oil changes until it shows clear on the dipstick . John in Suffolk County England .